PBL

To arm the Thunder B grenade, cock the striker back and insert the safety pin into the rear hole of the striker housing to hold the striker back. Close the spoon (handle) over the striker and hold it firmly. Remove the pin and reinsert it into the front hole to secure the spoon with the striker underneath of it. Then, a single 12 gram CO2 cartridge is inserted into the primer core. The primer core is then inserted into the disposable plastic shell and screwed on just like you would screw on a bottle cap. Your Thunder B grenade is now ready to rock and roll.